Sal does an example problem to determine the size and direction of the magnetic force on a proton moving through a magnetic field. Created by Sal Khan. Watch the next lesson: https://www.khanacademy.org/science/physics/magnetic-forces-and-magnetic-fields/magnets-magnetic/v/magnetism-4?utm_source=YT&utm_medium=Desc&utm_campaign=physics Missed the previous lesson? https://www.khanacademy.org/science/physics/magnetic-forces-and-magnetic-fields/magnets-magnetic/v/cross-product-2?utm_source=YT&utm_medium=Desc&utm_campaign=physics Physics on Khan Academy: Physics is the study of the basic principles that govern the physical world around us. We'll start by looking at motion itself. Then, we'll learn about forces, momentum, energy, and other concepts in lots of different physical situations. To get the most out of physics, you'll need a solid understanding of algebra and a basic understanding of trigonometry. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. ... https://www.youtube.com/watch?v=LTuGQy4rmmo

Try out Khanmigo, Khan Academy's new AI guide: https://blog.khanacademy.org/teacher-khanmigo/?utm_source=webinar&utm_medium=email&utm_campaign=salwebinar Want to learn more about AI, how it works, and how it can work - or not - in the classroom? Join Sal Khan and a group of rockstar teachers using AI to answer questions like: "What exactly is AI and how would it benefit my students?" "How do you believe AI will impact education?" "How can I educate my students to use AI as a learning tool rather than as a shortcut?" Plus so much more! ... https://www.youtube.com/watch?v=bSzW-0RuO9E Note: All Khan Academy content is available for free at (www.khanacademy.org)